Guard or shield for projecting surfaces



(N0 Model.)

R L STIGKNEY Y GUARD OB. SHIELD FOR PROJEGTING SURFACES.

No. 435,371. Patented Aug. 26, 1890 wmaw:

UNITED STATES PATENT OFFICE.

RANDOLPH L. STICKNEY, OF PEABODY, ASSIGNOR OF ONE-HALF TO KING UPTON, OF SALEM, MASSACHUSETTS.

GUARD OR SHIELD FOR PROJECTING SURFACES.

SPECIFICATION forming part of Letters Patent No. 435,371, dated August 26, 1890.

Application filed July 24, 1890- Serial N0.359,'736. (No model.)

To all whom it may concern:

Be it known that I, RANDOLPH L. STICK- NEY, of Peabody, county of Essex, State of Massachusetts, have invented an Improvement in Guards or Shields for Projecting Surfaces, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention has for its object to provide a guard or shield for the protruding head or end of the set-Screw by which pulleys and the like are secured to a shaft, whereby a smooth and uninterrupted surface may be presented.

The invention consists in a guard or shield adapted to inclose or conceal the said head and to be attached at a point between its ends to the said projecting head.

My invention has particular referenceto the means for holding the said guard or shield in place by attaching it to the projecting head of the set-screw.

The drawing shows in side elevation a pulley having a set-screw inclosed by a guard orshield embodying this invention.

The shaft or is herein shown as having thereon a pulley b, through the hub of which a set-screw 0 passes to secure the pulley to the shaft. A guard or shield (1, shown as a strip, block, or piece of metal, or it may be of any other Suitable material, curved to conform to the curvature of the hub, is placed on the hub inclosing or concealing the projecting end or head of the set-screw c. This guard or shield 01 is attached to the head of the set-screw c by means of a small screw 6 or otherwise. By attaching the guard or shield to the head of the set-screw it may be easily and cheaply secured in position, and it will not readily become loosen ed or slip off, and dealers can keep for sale guards ready to be applied, together, if desired, with topped set-screws. I do not desire to limit my invention to the employment of a screw, as e, for attaching the guard, because other means may be employed for attaching it on the setscrew 0.

I claim- A guard or shield for protecting the heads of set-screws of pulleys, consisting of a piece having a curved side to conform to the curvature of the hub of the pulley or collar and secured to the head of said set-screw, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

RANDOLPH L. STIOKNEY.

Witnesses:

GEORGE O. FAERINGTON, CHARLEs S. WEIGHT. 

